Keep in mind, it is a property of the wave medium, so we have to do something to the string to alter the wave speed. From earlier discussions, we know that tightening the string increases the wave speed.
Infants. Most infants receive the majority of their protein from breast milk or infant formula. The Institute of Medicine recommends babies ages 0 to 6 months consume at least 9.1 grams of protein, and infants ages 7 to 12 months eat at least 11 grams of protein every day.
Most people get enough protein. But are you making the best protein choices, or are you in a rut? You need protein for your muscles, bones, and the rest of your body. Exactly how much you need changes with age: Babies need about 10 grams a day. School-age kids need 19-34 grams a day. Teenage boys need up to 52 grams a day. Teenage girls need 46 grams a day. Adult men need about 56 grams a day. Adult women need about 46 grams a day (71 grams, if pregnant or breastfeeding) You should get at least 10% of your daily calories, but not more than 35%, from protein, according to the Institute of Medicine. Choose the Healthiest Sources of Protein. Just about every type of food has protein. Some have more than others.